Massage roller



FIG. 1 is a top front perspective view of a massage roller showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top elevation view thereof;

FIG. 5 is a bottom elevation view thereof; and,

FIG. 6 is a right elevation view thereof, with the left elevation view being a mirror image thereof. 

CLAIM The ornamental design for a massage roller, as shown and described. 